Refrigerating unit



Mar, i2, EQZQ,

s i i HUBER/l N. UOOPER, GE

BLOOMINGTON, ILLINOIS, ASSIGNQE EEO WALTER W. V1711 LIAMS, FBLOGMINGTON, ILLINOIS.

REFBIGERATING UNIT.

Application fried October 27, 1927. Serial No. 229,009.

This invention relates to improvements in dbmestic refrigerating plantsand more particularly to the refrigerating unit placed in" thefcfrige'rating'or icc chamber of a 1. msrici@em; Q p

it an object of this invention to proa ir-ie a refi igcrating -unitemployed inarlo- Inestic refrigerating machine o t the compression typeemploying the flooded system with a float valve chamber for regulatingthe supply of the refrigerant which will be connected directly to theunit without substantially increasing the width thereof. In systems ofthis kind employed in this type of domestic refrigerating machine, ithas been customary to construct the refrigerating units in sections andit is an object of this invention to insert the float chamber betweenthe'upper connection of such sections and a spacer of equal widthbetween the lower connection of such sections, whereby the float valvechamber may be said to become an integralspart of the refrigerating unitcontained within the-refrigerating or ice chamber of the ice box.

While the preferred form of this invention is illustrated upon theaccompanying sheets of drawings, it is to be understood that minordetail changes may be made without departing from the scope thereof.

In the drawings: Figure 1 is a view in perspective illustrating thepreferred form of this invention. Figure 2 is a view in verticaltransverse section taken on the line 2-2of Figure 3, looking in thedirection of the arrow.

Figure 3 is a view in longitudinal vertical section taken on the line3-3 of Figure 2, looking in the direction of the .-.rrow.

As above stated it is customary in this art to construct units of thischaracter in sections. Two of such sections, 1 and 2, are illustrated inFigure 1 connected to each other at the top and bottom by bolts 3. Eachsection is hollow, as shown in Figure 2, the interior of whichcommunicates with enlarged central bosses 4 at the top and bottomthereof, the adjacent or meeting edges of which are provided'with atongue and groov e connection, as shown in Figure 2, and. the sides ofeach section are provided with vertical and horizontal outstanding ribs,as shown in F igures l and 2. In aceordance with this invention a floatchamber 5 is provided with a depending boss 6, haverection therewith andheld in gas and liquid tigl'it Contact by the bolts 3. The interior ofthe float chamber communicates with the interior of the boss, as shownin Figure 3, and the float chamber boss communicates with the interiorof the section boss 4, as shown in Figure 2. A tubular spacer 9' havingsimilar means for forming a gas and liquid tight connection with thelower section bosses at is inserted therebetween, as shown in Figure 2,forming a means of communication between the bottom of these sections.

The float chamber 5 is provided with a float operated valve 10 operatedby a float 11 arranged in said chamber, which valve is provided with aconnection 12 to the high pressure side of the ice machine compressor-.and is so constructed that the valve remains open until the liquidrefrigerant fills the sides and bottom of the section and its levelrises in the float chamber, as indicated by the dotted line on Figure 2,suflicientlyto raise the float and close the valve. The float chamber 5is also provided with a conneetion 13 to the low pressure side of thecompressor, which,,during its operation of the ice machine, relieves thepressure above the liquid in the float chamber, whereby therefrigerating liquid is evaporated and passes ofi' therethrougll. Duringevaporation the refrigerant absorbs heat from the surrounding atmospherewhich reduces the temperature of the refrigerating or ice compartment ofthe-ice box. The operation of the float 11 is the normal operation ofthe customary float valve in this type and system of ice machine. i

This particular construction provides a very simple'means for connectingthe float .valve chamber 5 to. the unit at the proper level withoutincreasing the width of the unit to any great extent. Float valve cham105 bers vare usually employed for the same purpose as this one in unitsof this character and are either connected to the side of a section orattached to the'side of the refrigerating orice compartment of the ice110 boil- The refrigerating units are customarily constructed so as tobe received within refrigerating or ice compartments of a standard sizeice box with but little'space 'isions at -=the side of such a unit.

to spare on either side so that it is diflicult to install a floatchamber of proper dimen- It is to be 1 '1oted in the present inventionthat the Afloat chamber boss 6 is only of such width "as'to provideproper communication between i the section bosses and chamber anddepends below the float chamber so that the float chamber may be of anydesired diameter and the width of the entire unit is only increased bythe width of the boss. This .particular type of float chamber and meansfor attaching the same between the sections provides an efiicient devicereadily adapted to standard sections for refrigerating units.

" illustrated upon the drawings, the ice cube" tra s 14 aresupportedupon the hori beclosed, if desired, by a door hingedto theupper edge of said plate in the customary manner. 7

- What I claim is:.

' -1.' A refrigerating unit comprising hollow spaced apart side sectionsfor containing the refrigerating fluid,- a tubular spacer interposedbetween said sections at the bottom and communicating with theinteriorthereof, a float valvechamber, a tubular boss de.. pending therefromcorresponding in width to said spacer and interposed between saidsections at the top and communicating'with the interior thereof and withsaid chamber, a float and float-operated valve within said chamber forcontrolling the admission of the refrigerating fluid.

2. A refrigerating unit comprising hollow spaced apart side sections forcontaining the refrigerating fluid having corresponding tubular bossesat the top and bottom of theadjacent sides projecting in line each withthe other and-commumcatmg with the 1ntcrlor of the respective sectlons,a float valve chamber, a tubular boss depending therefrom of lesserwidth than said chamber and interposed between and in communication withthe upper aligned side bosses, a tubular spacer similar in width to thevalve chamher boss interposed between and in communication with theinterior of the lower aligned side bosses, and a float and float-.operated valve within said valve chamber for controlling the admissionof the refrigerating fluid.

Signed at 13100111111 tohQIllinois, this 18th day of October, 192

' a ROBERT N. COOPER.

